JPS607013Y2 - FPC connection terminal - Google Patents

Description

[Detailed description of the invention] The present invention relates to a connection terminal for electrically connecting an external conductor to an FPC (flexible printed wiring board) attached to the back of a meter casing of, for example, an automobile or an electrical device. .

The conventional means for electrically connecting the above-mentioned FPC and the external conductor is as shown in Figs. At the same time, the cantilever-shaped contact piece of the connecting terminal g is made to protrude from the terminal accommodating chambers f, f', f"... cut out on the side of the connector e, and inserted into the recessed part of the connector e. The contact piece was pressed into contact with the conductor part 1 of the FPC, C by fitting.

Nowadays, along with the addition of functional parts, the number of instruments mounted on the casing has also increased, and the wiring of the conductor portion of the FPC has become complicated.

However, in the conventional means for electrically connecting the FPC and the external conductor, as described above, a recess is formed on the back surface of the casing, so instruments such as meters are mounted avoiding the recess. This has also made it difficult to design the conductor portions of the FPC because those that span over both sides of the recess must be routed around the recess.

At this point, a pair of pillars are erected on the back side of the casing to which the FPC is attached, and by rotating the connector rotatably supported by the pair of pillars, the terminal protruding from the connector is wiped onto the FPC. There is provided a means for press-contacting the parts while causing the parts to come into contact with each other.

The present application is housed within the connector in such a manner,
The present invention provides a terminal having a structure in which a contact piece protrudes from a terminal housing chamber.

An example of the implementation of the present invention will be described below with reference to the drawings. Reference numeral 1 denotes a connecting terminal body consisting of a wire connecting part 2, a base part 3, and a contact piece 4, and the base part 3 has both side walls 5° 5' raised up. At the same time, the front portions of the side walls 5 and 5' are cut out from above and below to form narrow portions 6, and claw pieces 7 that are bent inward are formed from the upper portions of the narrow portions 6, respectively.

A free end 9 of the contact piece 4 extending in a cantilever shape from the front end of the lower wall 8 of the base 8 is wrapped around the claw piece 7 at an appropriate interval.

At the upper ends of the wide parts 10 at the rear of the side walls 5 and 5', receiving plate parts 11 and 11' which are bent inward are respectively formed, and from the lower ends of the wide parts 10, locking pieces 12 and 12' are respectively formed to hang down. ing.

The locking pieces 12, 12' are cut and raised from the lower wall 8 of the base 8, and their side surfaces are flush with the side walls 5゜5', and their rear ends 13 are aligned with the axis of the connecting terminal body 1. The front end 14 is inclined to widen toward the side wall 5.5'.

Reference numeral 15 denotes a connector for accommodating the connection terminal main body 1 having the structure described above, and the connector 15 forms a large number of terminal accommodating chambers 16, 16', 16'', . . . .

Terminal housing chambers 16.16', 16''... have side walls 17°1
Seats 18 and 18' are formed on both sides of the front portion of the receiver 7', and a protrusion 20 is provided projecting from the center of the lower wall 19, and elastic arms 22 are formed to hang down from the earthen wall 21.

The seat 18.18' of the above-mentioned receiver is made up of a substantially rib-shaped support portion 23 and an inclined surface 24 that widens the hem from the support portion 23 toward the rear of the upper wall 21, and the protrusion 20 extends toward the rear of the lower wall 19. It has an inclined surface 25 that widens the area and a 26 face 26 at the front.

Terminal accommodation chambers 16, 16', 16z, having the above configuration.
When inserting the connecting terminal body 1 into the terminal storage chamber 16. 16', 16''--Insert from the rear, and while sliding the locking pieces 12, 12' on the inclined surface 25 of the protrusion 20, press the receiving plate parts 11, 11' against the elastic arm 22. the front end of the receiving plate portion 11.11' is guided to the inclined surface 24 and supported on the support portion 23, and the rear portion of the locking piece 12.12′ is locked to the vertical surface 26 of the protrusion 20, The connecting terminal main body 1 is securely accommodated and locked in the terminal housing chamber 16, 16', 16', etc. by the pressing force of the elastic arm 22 and the locking of the protrusion 20 and the seat 18, 18'. Ru.

At this time, the contact piece 4 is connected to the terminal housing chambers 16, 16', 16''.
...It becomes more prominent.

As described above, the connection terminal main body 1 accommodated and locked in the connector 15 is rotatably supported by a support provided on the back side of the casing to which the FPC is attached.
By rotating, it comes into pressure contact with the FPC while wiping it.

Figures 4, 5, and 6 show such conditions,
On the opposite surfaces of the columns 27 and 27', there are columns 27 and 27, respectively.
A step 28 is formed which runs in the direction in which the connector 15 is erected and curves in a semi-circular arc upwards, and protrusions 29 and 29' are formed on both sides of the connector 15, respectively.

As shown in FIG. 6, the protrusions 29, 29 are guided by the step 28, and their upper ends are supported by the semicircular arc-shaped portion of the step 28, allowing the connector 15 to be rotatably supported by the supports 27, 27'.

The connector 15 rotates in this state, and the contact piece 4 of the connecting terminal body 1 protruding from the connector 15 is connected to the conductor parts 30, 3.
0'... is brought into contact with it.

The FPC connection terminal of the present invention has the above-mentioned structure and function.
It is in electrical contact with C and is distantly related to the purpose of the present invention.

In addition, since the contact piece 4 wraps around the claw piece 7, even if the contact piece 4 is pushed or pulled due to external pressure, the contact piece 4
is locked to the claw piece 7 and will not be bent beyond its elastic limit, which has great practical effects.

[Brief explanation of the drawing]

The figures show an example of the implementation of the present invention, in which Fig. 1 is a perspective view of a connecting terminal according to the present invention, Fig. 2 is a side view of the connection terminal, and Fig.
The figure is a cross-sectional view of the connector housing the above-mentioned connection terminal.
5 and 6 are usage state diagrams, FIG. 7 is a perspective view of a conventional FPC connection device, and FIG. 8 is a front view of a connection terminal accommodated in a connector of the same connection device. 1 Connection terminal body, 3 Base, 4 Contact piece, 5.5'
Side wall, 6 narrow part, 7 claw piece, 8 lower wall, 9 free end, 10 wide part, 11.11' receiving plate part, 12.12'
Locking piece.

Claims (1)

[Scope of utility model registration request] The front portions of both side walls of the base are cut out from at least one side to form a narrow portion, and a claw piece that bends inward is formed from the narrow portion and extends in a cantilever shape from the lower wall of the base. The free end of the contact piece is bent so as to wrap around the claw piece, and the upper end of the wide part at the rear of the side wall forms a receiving plate part that bends inward, and the lower end of the wide part has a locking piece. An FPC connection terminal characterized by being formed in a hanging shape.